West Yorkshire Police said officers were called to an incident in Winrose Crescent, Belle Isle, at 10.24pm last night.
Two culprits arrived at the address in a dark-coloured car and smashed a window.
One of the men, who was armed with a knife and a baseball bat, entered the property and assaulted the occupants, a 28-year-old man and a 24-year-old woman.
He struck the woman on the arm and torso with the bat, causing bruising, and the male victim received a cut to the ankle that required stitches.
Anyone with information is asked to contact Leeds District CID via 101 quoting crime number 13170120309.